# Nidec Corp. quality control and leadership crisis

> Live situation record from CLSTR: https://clstr.news/situations/nidec-corp-quality-control-misconduct-scandal
> Updated: 2026-09-28T04:05:13.000Z. Sources: 12. Developments: 3.

Japanese motor manufacturer Nidec Corp. has disclosed extensive quality control misconduct spanning approximately a decade. An internal investigation revealed 844 instances of wrongdoing dating back to 2012, including faked product tests, unauthorized changes to manufacturing processes and materials, and false labeling of product origins.

Company leadership attributed the misconduct to employees working under intense pressure to meet targets during rapid expansion. While the investigation was initially prompted by suspected accounting fraud at an overseas group company, Nidec stated that no safety issues have been identified and no massive recalls are currently planned. 

In response, President Mitsuyoshi Kishida has committed to fundamental reforms to prioritize quality and customer needs over internal logic, aiming to address deep-seated organizational culture issues. However, the company continues to face scrutiny as new irregularities emerge following the initial review of management systems.

As of late September 2026, Nidec is facing severe financial and leadership instability. Following reports that the board of directors resolved to dismiss President Kishida during an extraordinary meeting on September 25, Nidec shares plunged over 17% on the Tokyo Stock Exchange. The potential dismissal is reportedly linked to accounting irregularities and a massive anticipated impairment loss for the fiscal year ending March 2026.

While Nidec previously estimated the impairment at 250 billion yen, new reports indicate the figure may reach 1 trillion yen, significantly higher than a subsequent 400 billion yen estimate. In an official statement, the company confirmed it is “evaluating executive leadership changes and a large-scale impairment process,” though it maintained that no final decisions have been officially made at this time.

## Claims

- Nidec is currently evaluating executive leadership changes and a significant asset impairment. (corroborated by 4 sources)
- Nidec's board of directors resolved to dismiss President Mitsuya Kishida during an extraordinary meeting on September 25. (corroborated by 2 sources)
- The reported 1 trillion yen impairment would be significantly higher than the 400 billion yen previously anticipated by the company. (single source)
- Nidec's stock price fell by 17.61% on the Tokyo Stock Exchange, closing at 2,340 yen. (single source)

## Timeline

### 2026-09-28: Nidec shares plunge amid reports of 1 trillion yen impairment and leadership changes

Nidec shares plunged 17% following reports of a 1 trillion yen impairment charge and the potential dismissal of President Mitsuya Kishida due to accounting irregularities.

5 sources. https://clstr.news/cluster/nidec-considers-executive-changes-and-massive-impairment-losses

### 2026-09-13: Nidec faces scrutiny over 850 cases of quality misconduct

Nidec Corporation is addressing approximately 850 cases of quality misconduct discovered during internal audits, prompting a major push for organizational and cultural reform.

3 sources. https://clstr.news/cluster/nidec-faces-scrutiny-over-850-cases-of-quality-misconduct

### 2026-09-04: Nidec Corp. finds 844 cases of quality control misconduct

Nidec Corp. has identified 844 cases of quality control misconduct spanning ten years, including faked tests and unauthorized material changes, following an internal probe.

3 sources. https://clstr.news/cluster/nidec-corp-finds-844-cases-of-quality-control-misconduct

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Cite as: Nidec Corp. quality control and leadership crisis. CLSTR, https://clstr.news/situations/nidec-corp-quality-control-misconduct-scandal